10 
BULLETIN 746, U. S. 
DEPARTMENT OF AGRICULTURE. 
Avoyelles Parish. It has not been found in the cane-growing sections 
of Wharton, Sugarland, and Victoria, Tex. 
It is noteworthy that the territory infested in the United States is 
mostly within the limits of an area known as the Gulf Strip of the 
Lower Austral Zone. 1 This strip along the coast is indicated in the 
accompanying map (fig. 1), which shows also the infested regions. 
That the insect is found only in three such widely separated places 
as the southern parts of Texas, Louisiana, and Florida may be ex- 
plained by the fact that it is a tropical species and probably was 
brought to these three cane-growing sections independently in ship- 
ments of seed cane. Where sugar cane is only an incidental crop it 
Fig. 1. — Map showing distribution of the sugar-cane moth borer (Diatraea saccharalis 
crambidoides) in the United States. The area below the line of dashes is the " Gulf 
Strip." Note that the territory infested is practically well within the limits of this 
biological zone. 
does not occur, although a nearly related species attacks corn and very 
seldom sugar cane in Georgia, northern Florida, North Carolina, 
South Carolina, and Virginia (75). 
SPECIES OF DIATRAEA. 
Dr. Harrison G. Dyar (45) records three species of Diatraea in the 
United States. These are : 
Diatraea saccharalis saccharalis Fabricius. French Guiana, Cuba, Trinidad. 
Peru. Also a female from southern Florida. Trobably Santo Domingo. 
Diatraea saccharalis cramlidoides Grote. Mexico, numerous localities; Gulf 
States and lower Mississippi Valley. 
Diatraea zeacolella, Dyar. North Carolina, South Carolina, Virginia. 
Diatraea lineolata Walker. Cuba, Trinidad, the Guianas. Venezuela, Costa 
Rica, Mexico, and southern Arizona. 
1 Merriam, C. Hart. Life Zones and Crop Zones of the United States. 
Agr. Div. Biol. Surv. Bui. 10. 79 p., 1 col. map. 1898. 
U. S. Dept. 
